Get current number of partitions of a DataFrame

Question

Is there any way to get the current number of partitions of a DataFrame? I checked the DataFrame javadoc (spark 1.6) and didn\'t found a method for that, or am I just missed

Answer 1

One more Interesting way to get number of partitions is 'using mapPartitions' transformation. Sample Code -

val x = (1 to 10).toList
val numberDF = x.toDF()
numberDF.rdd.mapPartitions(x => Iterator[Int](1)).sum()

Spark experts are welcome to comment on its performance.